CN110235928B

CN110235928B - Crayfish device of shelling

Info

Publication number: CN110235928B
Application number: CN201910550771.0A
Authority: CN
Inventors: 秦建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2022-02-22
Anticipated expiration: 2039-06-24
Also published as: CN110235928A

Abstract

The invention discloses a safe crayfish shelling device capable of completing shell cutting and shelling at one time, which comprises: the shrimp meat harvester comprises a base, a longitudinal moving platform and a driving mechanism thereof, wherein the longitudinal moving platform and the driving mechanism thereof are arranged on the base; the base on still be provided with and dissect the support, dissect the both sides of support and articulate respectively and dissect the cantilever beam, dissect the cantilever beam and dissect and be equipped with down the sword and use elastomeric element between the support, dissect the cantilever beam's tip and be equipped with rotary cutter, indulge and be equipped with rotary transmission mechanism between the actuating mechanism of platform and the rotary cutter, the base on be equipped with and lift sword support, lift sword support propelling movement actuating mechanism, lock unlocking device, shrimp meat location support and actuating mechanism in place, lift the sword support and dissect and be equipped with propelling movement drive mechanism between the cantilever beam, be equipped with the shrimp meat pilot pin on the shrimp meat location support. The invention is especially suitable for occasions such as restaurants and the like.

Description

Crayfish device of shelling

Technical Field

The invention relates to a special tool in the catering industry, in particular to a crayfish shelling device.

Background

It is known that shelling is a very troublesome task when eating the delicacy of crayfish. In order to conveniently shell the crayfish when eating, the back shell of the raw crayfish is usually cut in advance, and after the crayfish is cooked and put on a table, the crayfish meat can be conveniently taken out from the cut part of the back shell, but even if the crayfish is taken out of the pot, the crayfish is still hot and not easy to get into the hand, so that the shelling efficiency is greatly influenced; on the other hand, the soup on the surface of the crayfish splashes around during the shelling process, if the soup splashes on clothes, but if the soup splashes into eyes or skin, the soup can cause harm to human bodies, so that potential safety hazards exist; meanwhile, in order to keep the meat of the crayfish compact and rich in Q-elasticity when eating, the back shell of the raw crayfish is not cut but the whole crayfish is processed by a common restaurant, which causes the crayfish to be more difficult to shell.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a crayfish shelling device which is very safe and realizes the one-time completion of shell cutting and shelling.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a crawfish shelling device comprising: the shrimp body placing device comprises a base, wherein a longitudinal moving platform capable of moving along the longitudinal direction is movably arranged on the base, transverse moving supports capable of moving along the transverse direction are respectively movably arranged on two transverse sides of the longitudinal moving platform, a turning shaft arranged along the longitudinal direction and a turning driving mechanism for driving the turning shaft to rotate are respectively movably arranged on the pair of transverse moving supports, a plurality of shrimp body pressing claws are longitudinally arranged on the turning shaft, shrimp leg placing grooves which penetrate up and down are formed on two sides of the middle part of the longitudinal moving platform, so that a shrimp body placing part is formed in the middle part of the longitudinal moving platform, a shrimp tail blocking boss is arranged at the rear end of the shrimp body placing part, a cutting avoiding notch is inwards formed at the front end of the shrimp body placing part, and a longitudinal moving platform driving mechanism for enabling the longitudinal moving platform to move along the longitudinal direction is arranged between the longitudinal moving platform and the base; the base is further provided with a sectioning support, sectioning arms are movably hinged to the upper side and the lower side of the sectioning support respectively, an elastic part for a lower cutter is arranged between the sectioning arms and the sectioning support, a rotary cutter is arranged at the end part of the sectioning arms, rotary transmission mechanisms are arranged between the longitudinal moving platform driving mechanism and the pair of rotary cutters respectively, the base is further provided with a cutter lifting support capable of moving longitudinally in a sliding mode, pushing transmission mechanisms are arranged between the cutter lifting support and the pair of sectioning arms respectively, the base is further provided with a cutter lifting support pushing driving mechanism used for pushing the cutter lifting support to move, and an in-place locking and unlocking device is further arranged between the cutter lifting support and the base.

As a preferred scheme, in the crayfish shelling device, the back of the longitudinal moving platform is provided with a pair of shrimp leg cutter seats respectively and movably arranged on two sides of the shrimp leg placing groove, shrimp leg cutters arranged towards the shrimp leg installing grooves on the corresponding side are arranged on the shrimp leg cutter seats, guide plates are respectively arranged on the bases below the shrimp leg cutter seats on the two sides, guide grooves are formed in the guide plates, the pair of guide grooves comprise a section of inclined guide and pushing section which can enable the shrimp leg cutter seats to transversely move in the moving process of the longitudinal moving platform, guide columns matched with the guide grooves are arranged on the shrimp leg cutter seats, and the guide columns are movably arranged in the corresponding guide grooves.

As a preferable scheme, in the crayfish shelling device, a liftable shrimp positioning support is movably arranged on the base under the cutting avoiding opening, a row of shrimp positioning needles are arranged on the shrimp positioning support, and a lifting driving device capable of enabling the shrimp positioning support to move up and down is arranged on the base.

As a preferable scheme, in the crayfish shelling device, the specific structure of the longitudinally moving platform driving mechanism comprises: the transverse movement type power device comprises a driving shaft and a longitudinal movement power device, wherein the driving shaft is transversely movably arranged on a base, the longitudinal movement power device is arranged on the base, one end of the driving shaft is provided with a driving sector gear and is connected with an output shaft of the longitudinal movement power device, the other end of the driving shaft is provided with a driving sector gear, two sides of the base are respectively movably provided with a longitudinally arranged transmission screw, the corresponding end of the transmission screw is provided with a driven sector gear meshed with the corresponding driving sector gear, a longitudinal movement sliding block is arranged on the transmission screw, and the longitudinal movement sliding block is connected with the corresponding side of the longitudinal movement platform.

As a preferable scheme, in the crayfish shelling device, the rotary cutter is movably arranged at the end part of the corresponding cutting extending arm through a rotary cutter shaft; the specific structure of the rotary transmission mechanism comprises: the setting is in dissect and use drive gear in the drive shaft, dissect the cantilever arm and dissect the support and be hollow structure, dissect the support and articulate on the base through the drive shaft activity, promptly: the sectioning support is movably arranged on the driving shaft; the sectioning driving gear is positioned in the sectioning support, the rotary sectioning cutter shaft is provided with sectioning gears, a plurality of sectioning transmission gears are respectively arranged between the sectioning driving gear and the corresponding sectioning gears in the sectioning support and the sectioning extension arm, the adjacent sectioning transmission gears are meshed with each other, and the sectioning transmission gears at two ends are respectively meshed with the sectioning driving gear and the corresponding sectioning gears.

As a preferable scheme, in the crayfish shelling device, the specific structure of the cutter lifting bracket pushing driving mechanism comprises: the cutter lifting support comprises a transverse push rod and a longitudinal pull rod, wherein one end of the push rod is movably hinged with one end of the pull rod, the other end of the push rod is movably hinged on the base, a pull rod head matched with the transmission screw rod and the longitudinal sliding block is arranged at the other end of the pull rod, so that the pull rod head can slide in a single direction under the pushing action of the longitudinal sliding block, and the cutter lifting support is abutted against the push rod.

As a preferable scheme, in the crayfish shelling device, the cutter lifting bracket is slidably arranged on the base through a longitudinal cutter lifting guide rail, and the specific structure of the in-place locking and unlocking device comprises: the horizontal activity articulates the gag lever post that targets in place on the base, is provided with spacing for elastomeric element between gag lever post and the base that targets in place, vertical lifting cutter guide rail on set up with the gag lever post one end that targets in place the spacing end matched with spacing groove of gag lever post promptly, the vertical platform that moves in place on be provided with the other end that targets in place the gag lever post promptly target in place the end matched with the boss that bulldozes in place that targets in place of the gag lever post, set up on the bottom surface that bulldozes in place the boss with the gag lever post that targets in place the end matched with bulldoze the inclined plane.

In a preferable scheme, in the crayfish shelling device, the in-place end of the in-place limiting rod is provided with an in-place bearing.

As a preferred scheme, in the crayfish shelling device, the upper side and the lower side of the sectioning support are respectively articulated with one end of the corresponding sectioning extension arm through sectioning articulated shafts; the specific structure of the pushing transmission mechanism comprises: and the two ends of the shifting fork respectively abut against the corresponding sides of the sectioning extending arm and the sectioning support.

The invention has the beneficial effects that: the invention can place boiled crayfish in the shrimp body setting part of the longitudinal moving platform, the shrimp feet fall into the shrimp feet setting grooves on the two sides of the shrimp body setting part, then the shrimp body is fixed on the shrimp body setting part of the longitudinal moving platform by the shrimp body pressing claw through the overturn of the overturn shaft, then the longitudinal moving platform moves towards one side of the sectioning support under the action of the driving mechanism of the longitudinal moving platform, the shrimp feet cutters on the two sides draw close towards the middle in the moving process, the shrimp feet are cut off, after the longitudinal moving platform is in place, the sectioning extending arm is unlocked to press against the upper and lower sides of the shrimp body, then the longitudinal moving platform starts to retreat, the shrimp feet cutters on the longitudinal moving platform separate towards the two sides in the retreating process, the rotary cutters arranged at the end part of the sectioning extending arm dissect the shrimp shells from the upper and lower sides of the shrimp shells, the longitudinal moving platform continues to retreat, at this time, the driving mechanism of the longitudinal moving platform forces the cutter support to push driving mechanism, the sectioning extension arms are lifted to two sides through the cutter lifting bracket, and the cutter lifting bracket is locked on the base after the sectioning extension arms are in place; and then, the shrimp positioning needle is upwards lifted and pierced into the shrimp under the driving of the lifting driving device, and then the turnover shaft drives the shrimp shell to turn over towards two sides so as to automatically separate the shrimp shell from the shrimp. Therefore, the crayfish can be cut, shelled and taken out at one time, the whole process does not need manual work after the crayfish is fixed on the longitudinal moving platform, the safety is realized, and the shelling efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the crayfish shelling device.

Fig. 2 is a left side view of the structure of fig. 1.

Fig. 3 is a partial structural view of fig. 2.

Fig. 4 is a partial structural view in the right-hand direction in fig. 3.

Fig. 5 is a schematic structural diagram of the working principle of the in-place locking and unlocking device.

Fig. 6 is one of the using state diagrams of the crayfish shelling device of the invention.

Fig. 7 is a left side view of the structure of fig. 6.

Fig. 8 is a second using state diagram of the crawfish shelling device of the present invention.

The reference numerals in fig. 1 to 8 are: 1. a base, 11, a guide plate, 111, a guide groove, 1111, an oblique guide and push section, 2, a longitudinal moving platform, 21, a shrimp body placing part, 211, a shrimp tail blocking boss, 212, a cutting avoiding notch, 22, a shrimp foot placing groove, 23, a shrimp foot cutter, 25, a fixture block, 27, a position push boss, 271, a push inclined plane, 4, a longitudinal platform driving motor, 40, a cutting support, 41, a driving shaft, 411, a driving sector gear, 412, a cutting driving gear, 42, a transmission screw, 421, a driven sector gear, 422, a longitudinal moving sliding block, 423, a longitudinal moving connecting plate, 43, an upper cutting extending arm, 431, an upper cutting articulated shaft, 44, a lower cutting extending arm, 441, a lower cutting articulated shaft, 45, a cutting transmission gear, 46, a rotary cutter, 461, a cutting gear 471, an upper shifting fork, 472, a lower shifting fork, 48, a lower knife torsional spring, 61, a shrimp body pressing claw, 7. the device comprises a lifting motor 70, a shrimp positioning support 71, a lifting screw 72, a connecting support 73, a lifting slider 74, a shrimp positioning needle 80, a cutter lifting support 801, a longitudinal cutter lifting guide rail 81, a push rod 82, a pull rod 83, a pull rod head 85, an in-place limiting rod 851, a limiting end 852, an in-place end 86 and a limiting torsion spring.

Detailed Description

The embodiment of the crawfish shelling device according to the present invention will be described in detail with reference to fig. 1 to 8.

As shown in fig. 1, 2 and 3, the crawfish shelling device of the present invention comprises: a base 1, a longitudinally moving platform 2 capable of moving longitudinally is movably arranged on the base 1, transversely moving supports (belonging to the conventional technology in the field and not shown in the figure) capable of moving transversely are respectively movably arranged on the two sides of the longitudinally moving platform 2, a turnover shaft (belonging to the conventional technology in the field and not shown in the figure) and a turnover driving mechanism (belonging to the conventional technology in the field and not shown in the figure) which are longitudinally arranged are respectively movably arranged on the pair of transverse supports, a plurality of shrimp body pressing claws 61 are longitudinally arranged on the turnover shaft, shrimp foot accommodating grooves 22 which vertically penetrate through are arranged on the two sides of the middle part of the longitudinally moving platform 2, so that a shrimp body accommodating part 21 is formed in the middle part of the longitudinally moving platform 2, a shrimp tail blocking boss 211 is arranged at the rear end of the shrimp body accommodating part 21, and an avoidance notch 212 is inwards cut at the front end of the shrimp body accommodating part 21, indulge and be provided with between platform 2 and the base 1 and make the platform 2 that indulges of moving indulging along the platform actuating mechanism that indulges of longitudinal movement, should indulge the specific structure of moving platform actuating mechanism and include: the transverse movement type power device comprises a driving shaft 41 transversely movably arranged on a base 1 and a longitudinal platform driving motor 4 arranged on the base 1 and used as a longitudinal movement power device, wherein one end of the driving shaft 41 is provided with a driving sector gear 411, the end part of the driving shaft is connected with an output shaft of the longitudinal platform driving motor 4, the other end of the driving shaft 41 is provided with the driving sector gear 411, two sides of the base 1 are respectively movably provided with a driving screw 42 which is longitudinally arranged, the corresponding end of the driving screw 42 is provided with a driven sector gear 421 meshed with the driving sector gear 411 on the corresponding side of the driving shaft 41, the driving screw 42 is provided with a longitudinal movement sliding block 422, and the longitudinal movement sliding block 422 is connected with the corresponding side of the longitudinal movement platform 2 through a longitudinal movement connecting plate 423 in a specific connection mode that: the longitudinal moving connecting plate 423 is provided with a bayonet, the longitudinal moving platform 2 is provided with a fixture block 25 corresponding to the bayonet, and the fixture block 25 is clamped in the bayonet of the corresponding longitudinal moving connecting plate 423 (of course, the longitudinal moving connecting plate 423 can be directly welded on the longitudinal moving platform 2); the back of the longitudinal moving platform 2 is respectively and movably provided with a shrimp leg cutter seat (belonging to the conventional technology in the field and not shown in the figure) at two sides of a pair of shrimp leg placing grooves 22, the shrimp leg cutter seat is provided with a shrimp leg cutter 23 arranged towards the shrimp leg installing groove 22 at the corresponding side, the base 1 is respectively provided with a guide plate 11 below the shrimp leg cutter seats at the two sides, the guide plate 11 is provided with a guide groove 111, the pair of guide grooves 111 comprises a section of oblique guide pushing section 1111 capable of enabling the shrimp leg cutter seat (the shrimp leg cutter 23) to move along the transverse direction in the moving process of the longitudinal moving platform 2, the shrimp leg cutter seat is provided with a guide column (belonging to the conventional technology in the field and not shown in the figure) matched with the guide groove 111, and the guide column is movably arranged in the corresponding guide groove 111; the base 1 is also provided with a sectioning support 40, the sectioning support 40 is movably hinged with an upper sectioning extending arm 43 on the upper side through an upper sectioning hinging shaft 431 and is movably hinged with a lower sectioning extending arm 44 on the lower side through a lower sectioning hinging shaft 441, a lower knife torsion spring 48 as an elastic component for the lower knife is respectively arranged between the upper sectioning extending arm 43 and the lower sectioning extending arm 44 and the sectioning support 40, the end parts of the upper sectioning extending arm 43 and the lower sectioning extending arm 44 are respectively provided with a rotary cutter 46 through rotary cutter shafts, and a rotary transmission mechanism is respectively arranged between a driving shaft 41 in the longitudinal moving platform driving mechanism and a pair of rotary cutters 46, and the specific structure of the rotary transmission mechanism comprises: the cutting driving gear 412 is arranged on the driving shaft 41, the upper and lower

cutting extension arms

43 and 44 and the cutting support 40 are all hollow structures, and the cutting support 40 is movably hinged on the base 1 through the driving shaft 41, namely: the sectioning support 40 is movably arranged on the driving shaft 41; the cutting driving gear 412 is positioned in the cutting support 40, the rotary cutting shaft is provided with a cutting gear 461, the cutting support 40 and the upper and lower

cutting extension arms

43 and 44 are respectively provided with a plurality of cutting transmission gears 45 between the cutting driving gear 412 and the corresponding cutting gear 461, the adjacent cutting transmission gears 45 are mutually meshed, and the cutting transmission gears 45 at two ends are respectively meshed with the cutting driving gear 412 and the corresponding cutting gear 461; the base 1 on still be provided with the sword support 80 that can vertically move through the vertical sword guide rail 801 that lifts that slides, lift and be provided with the propelling movement drive mechanism between sword support 80 and upper and lower

dissection cantilever arm

43 and 44 respectively, this propelling movement drive mechanism includes: an upper shifting fork 471 movably sleeved on the upper sectioning hinge shaft 431 and a lower shifting fork 472 movably sleeved on the lower sectioning hinge shaft 441, wherein two ends of the upper shifting fork 471 are respectively abutted against corresponding sides of the upper sectioning extension arm 43 and the sectioning support 40, and two ends of the lower shifting fork 472 are respectively abutted against corresponding sides of the lower sectioning extension arm 44 and the sectioning support 40; base 1 on still be provided with and be used for the propelling movement to lift the sword support propelling movement actuating mechanism that sword support 80 removed, this specific structure of lifting sword support propelling movement actuating mechanism includes: a pair of push rods 81 respectively movably sleeved on the upper and lower sectioning

hinge shafts

431 and 441, wherein two ends of the push rods 81 respectively abut against corresponding sides of the sectioning extension arms and the sectioning supports; base 1 on still be provided with and be used for the propelling movement to lift the sword support propelling movement actuating mechanism that sword support 80 removed, this specific structure of lifting sword support propelling movement actuating mechanism includes: a transverse push rod 81 and a longitudinal pull rod 82, wherein one end of the push rod 81 is movably hinged with one end of the pull rod 82, the other end of the push rod 81 is movably hinged on the base 1, a pull rod head 83 matched with the transmission screw rod 42 and the longitudinal sliding block 422 is arranged at the other end of the pull rod 82, so that the pull rod head 83 can perform one-way sliding under the pushing of the longitudinal sliding block 422, the cutter lifting support 80 is abutted against the push rod 81, the other end of the pull rod 82 is slidably arranged on the base 1 through a pull rod seat (belonging to the conventional technology in the field and not shown in the figure), and the base 1 is further provided with a pull rod limiting block (belonging to the conventional technology in the field and not shown in the figure) matched with the pull rod seat; lift sword support 80 with base 1 between still be provided with the locking and unlocking device that targets in place, this locking and unlocking device's of position concrete structure includes: the in-place limiting rod 85 is transversely and movably hinged on the base 1, one end of the in-place limiting rod 85 serves as a limiting end 851, the other end of the in-place limiting rod 85 serves as an in-place end 852 and is provided with a bearing for reducing resistance, a limiting torsion spring 86 serving as an elastic component for limiting is arranged between the in-place limiting rod 85 and the base 1, a limiting groove matched with the limiting end 851 of the in-place limiting rod 85 is formed in the longitudinal cutter lifting guide rail 801, an in-place pushing boss 27 matched with the in-place end 852 of the in-place limiting rod 85 is arranged on the longitudinal displacement platform 2, and a pushing inclined plane 271-see fig. 5 matched with the in-place end 852 of the in-place limiting rod 85 is formed in the bottom surface of the in-place pushing boss 27; base 1 on dissect and dodge opening 212 under the activity be provided with the shrimp positioning support 70 of liftable, be provided with one row of shrimp pilot pin 74 on the shrimp positioning support 70, base 1 and shrimp positioning support 70 between be provided with the lift drive who makes shrimp positioning support 70 reciprocate, the structure includes that the utensil of lift drive has been stopped: the shrimp positioning device comprises a lifting motor 7 arranged on a base 1, wherein a lifting screw 71 is connected to an output shaft of the lifting motor 7, a lifting slider 73 is arranged on the lifting screw 71, a shrimp positioning support 70 is connected with the lifting slider 73 through a connecting support 72, and the connecting support 72 is arranged on the base 1 in a sliding mode through a guide rail.

In practical applications, in order to reduce friction, an in-place bearing (not shown in the drawings) is disposed on the in-place end 852 of the in-place limiting rod 85; a sensor which senses whether the transverse moving support moves in place or not and whether the shrimp body pressing claw 61 overturns in place or not is also arranged on the longitudinal moving platform 2.

The working principle of the invention is as follows: the boiled crayfish is placed on the shrimp body placing part 21 of the longitudinal moving platform 2, the shrimp legs fall into the shrimp leg placing grooves 22 at both sides of the shrimp body placing part 21, then the shrimp body pressing claw 61 is made to approach the shrimp body by the movement of the transverse moving support, then the shrimp body pressing claw 61 is made to overturn and pierce the shrimp shell at the back by the rotation of the overturning shaft, the shrimp body is held on the shrimp body placing part 21 of the longitudinal moving platform 2, then the longitudinal moving platform 2 is made to move towards one side of the sectioning support 40 under the action of the driving mechanism of the longitudinal moving platform, during the moving process, the shrimp leg cutters 23 at both sides are made to approach towards the middle to cut off the shrimp legs, when the longitudinal moving platform 2 is moved to the position, see-in-position pressing inclined plane 271 behind the positioning pressing boss 27 to press the positioning end 852 of the positioning limiting rod 85, so that the positioning limiting end 852 of the positioning limiting rod 85 rotates clockwise, the locking of the upper and lower

cutting projecting arms

43 and 44 is released, the upper and lower

cutting projecting arms

43 and 44 are respectively moved towards the middle under the action of the torsion spring 48 of the lower knife to press against the upper and lower sides of the shrimp body, then the longitudinal moving platform 2 starts to retreat, the shrimp feet cutters 23 are separated towards the two sides during the retreat process of the longitudinal moving platform 2, the rotary cutters 46 arranged at the ends of the upper and lower

cutting projecting arms

43 and 44 cut the shrimp shell from the upper and lower sides of the shrimp shell, after the cutting, the longitudinal moving platform 2 continues to retreat, at this time, the longitudinal moving slide block 422 pushes the pull rod head 83 to move together, the pull rod head 83 pushes the cutter-lifting bracket 80 to move together through the pull rod 82 and the push rod 81 during the moving process, the upper and lower

cutting projecting arms

43 and 44 are lifted towards the two sides-see figure 3, after the moving to the position, the position limit end 801 of the position limit rod 85 falls into the limit groove of the longitudinal cutter-lifting guide rail, see figure 4, so that the blade raising bracket 80 is locked on the base 1-see fig. 8; then, the shrimp meat positioning pin 74 is driven by the lifting driving device to be lifted upwards and pierced into the shrimp meat, and then the shrimp body pressing claw 61 carries the shrimp shell to turn over towards both sides, so that the shrimp shell and the shrimp meat are automatically separated. Thus, the foot cutting, the shell peeling and the meat taking are completed at one time.

In summary, the present invention is only a preferred embodiment, and not intended to limit the scope of the invention, and all equivalent changes and modifications made in the shape, structure, characteristics and spirit of the present invention described in the claims should be included in the scope of the present invention.

Claims

1. A crawfish shelling device comprising: base, its characterized in that: the base is movably provided with a longitudinal moving platform capable of moving along the longitudinal direction, the longitudinal moving platform is respectively and movably provided with transverse moving supports capable of moving along the transverse direction at two transverse sides, the pair of transverse moving supports are respectively and movably provided with a turnover shaft arranged along the longitudinal direction and a turnover driving mechanism used for driving the turnover shaft to rotate, the turnover shaft is longitudinally provided with a plurality of shrimp body pressing claws, two sides of the middle part of the longitudinal moving platform are provided with shrimp leg accommodating grooves which penetrate up and down, so that a shrimp body accommodating part is formed at the middle part of the longitudinal moving platform, the rear end of the shrimp body accommodating part is provided with a shrimp tail blocking boss, the front end of the shrimp body accommodating part is inwards provided with a cutting avoiding gap, and a longitudinal moving platform driving mechanism used for enabling the longitudinal moving platform to move along the longitudinal direction is arranged between the longitudinal moving platform and the base; the base is also provided with a sectioning support, sectioning support arms are movably hinged on the upper side and the lower side of the sectioning support respectively, an elastic part for a lower knife is arranged between the sectioning support arms and the sectioning support, the end part of each sectioning support arm is provided with a rotary cutter, rotary transmission mechanisms are respectively arranged between the longitudinal moving platform driving mechanism and the pair of rotary cutters, the base is also provided with a knife lifting support capable of longitudinally moving in a sliding manner, pushing transmission mechanisms are respectively arranged between the knife lifting support and the pair of sectioning support arms, the base is also provided with a knife lifting support pushing driving mechanism for pushing the knife lifting support to move, and an in-place locking and unlocking device is also arranged between the knife lifting support and the base; the back of the longitudinal moving platform is respectively and movably provided with a shrimp leg cutter seat at two sides of the shrimp leg placing grooves, shrimp leg cutters which are arranged towards the shrimp leg installing grooves at the corresponding side are arranged on the shrimp leg cutter seats, guide plates are respectively arranged on the base below the shrimp leg cutter seats at the two sides, guide grooves are arranged on the guide plates, the pair of guide grooves comprise a section of oblique guide and push section which can enable the shrimp leg cutter seats to move along the transverse direction in the moving process of the longitudinal moving platform, guide columns matched with the guide grooves are arranged on the shrimp leg cutter seats, and the guide columns are movably arranged in the corresponding guide grooves; the cutter lifting support is arranged on the base in a sliding mode through a longitudinal cutter lifting guide rail, and the in-place locking and unlocking device comprises the following specific structures: the horizontal activity articulates the gag lever post that targets in place on the base, is provided with spacing for elastomeric element between gag lever post and the base that targets in place, vertical lifting cutter guide rail on set up with the gag lever post one end that targets in place promptly its spacing end matched with spacing groove, the platform that moves longitudinally on be provided with the other end that targets in place the gag lever post promptly its end matched with that targets in place bulldozes the boss, set up on the bottom surface that targets in place bulldozes the boss with the gag lever post that targets in place the end matched with bulldoze the inclined plane.

2. The crayfish shelling apparatus as claimed in claim 1 wherein: the base on dissect and dodge the activity of opening under and be provided with the shrimp meat location support of liftable, be provided with one row of shrimp meat pilot pin on the shrimp meat location support, the base on be provided with the lift drive arrangement that can make shrimp meat location support reciprocate.

3. The crayfish shelling apparatus as claimed in claim 1 wherein: the specific structure of the longitudinal moving platform driving mechanism comprises: the transverse movement type power device comprises a driving shaft and a longitudinal movement power device, wherein the driving shaft is transversely movably arranged on a base, the longitudinal movement power device is arranged on the base, one end of the driving shaft is provided with a driving sector gear and is connected with an output shaft of the longitudinal movement power device, the other end of the driving shaft is provided with a driving sector gear, two sides of the base are respectively movably provided with a longitudinally arranged transmission screw, the corresponding end of the transmission screw is provided with a driven sector gear meshed with the corresponding driving sector gear, a longitudinal movement sliding block is arranged on the transmission screw, and the longitudinal movement sliding block is connected with the corresponding side of the longitudinal movement platform.

4. The crayfish shelling apparatus as claimed in claim 3 wherein: the rotary cutter is movably arranged at the end part of the corresponding sectioning extension arm through a rotary cutter shaft; the specific structure of the rotary transmission mechanism comprises: the setting is in dissect and use drive gear in the drive shaft, dissect the cantilever arm and dissect the support and be hollow structure, dissect the support and articulate on the base through the drive shaft activity, promptly: the sectioning support is movably arranged on the driving shaft; the sectioning driving gear is positioned in the sectioning support, the rotary sectioning cutter shaft is provided with sectioning gears, a plurality of sectioning transmission gears are respectively arranged between the sectioning driving gear and the corresponding sectioning gears in the sectioning support and the sectioning extension arm, the adjacent sectioning transmission gears are meshed with each other, and the sectioning transmission gears at two ends are respectively meshed with the sectioning driving gear and the corresponding sectioning gears.

5. The crayfish shelling apparatus as claimed in claim 1 wherein: the concrete structure of the cutter lifting support pushing driving mechanism comprises: the cutter lifting support comprises a transverse push rod and a longitudinal pull rod, wherein one end of the push rod is movably hinged with one end of the pull rod, the other end of the push rod is movably hinged on the base, a pull rod head matched with the transmission screw rod and the longitudinal sliding block is arranged at the other end of the pull rod, so that the pull rod head can slide in a single direction under the pushing action of the longitudinal sliding block, and the cutter lifting support is abutted against the push rod.

6. The crayfish shelling apparatus as claimed in claim 1 wherein: and an in-place bearing is arranged at the in-place end of the in-place limiting rod.

7. The crayfish shelling apparatus as claimed in any one of claims 1 to 6 wherein: the upper side and the lower side of the sectioning support are respectively articulated with one end of the corresponding sectioning extension arm through a sectioning articulated shaft; the specific structure of the pushing transmission mechanism comprises: and the two ends of the shifting fork respectively abut against the corresponding sides of the sectioning extending arm and the sectioning support.